{
  "id": "2201.09578",
  "version": "v1",
  "published": "2022-01-24T10:40:33.000Z",
  "updated": "2022-01-24T10:40:33.000Z",
  "title": "A large catalogue of molecular clouds in the southern sky",
  "authors": [
    "Helong Guo",
    "Bingqiu Chen",
    "Xiaowei Liu"
  ],
  "comment": "11 pages, 10 figures, 2 tables, accepted for publication in MNRAS",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We present a large catalogue of molecular clouds with accurate distance estimates in the southern sky. Based on the three-dimensional (3D) dust extinction map and the best-fit extinction and distance information of over 17 million stars presented in Guo et al., we have identified 250 dust/molecular clouds in the southern sky using a hierarchical structure identification algorithm. Amongst them, 71 clouds locating at high Galactic latitudes ($b < -10^\\circ$). We have estimated the distances to the clouds by fitting the extinction versus distance profiles of the lines of sight overlapping with the clouds using a simple Gaussian dust distribution model. The typical uncertainties of the distances are less than 7 per$\\,$cent. We also provide the physical properties of the individual clouds, including the linear radius, mass and surface mass density.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-01-24T10:40:33.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "southern sky",
      "large catalogue",
      "molecular clouds",
      "simple gaussian dust distribution model",
      "dust extinction map"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}